Carbureter.



J. W. RAYMOND. CARBURETER.

APPLICATIQN FILED 0U. 23. 1914.

Patented May 30, 1916.

mm am To all whom a: in, min? JOHN w. sermon, on naiz'ron, 0m, assrcnonTo me AIB rnrcrroncaneunnrnn Be it known that L'd'onzv W. Baritone, 4 acltlzen f the United States, residing at Dayton, 1n the county ofMontgomery and 75 State. of OhlO, have invented certain new and usefulImprovements in Carbureters; and. I do declare the following to be afull, clear, and exact descriptionof the inven- 'tion, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

- This invention relates to new and, useflil improvements incarburetors. The needie valve is a common element in carbureter's forregulating the feed of the fuel to the manifolds of gas engines. Ow-

' ing to a disposition, which is almost general, onthe partof unskilledusers of carbureters, to attribute all trouble that may arise, -whether-in the carbureter, engine or elsewhere, to the needle valve, it hasbecome a special object of attention and more or less tampering with itlater interferes with the obtainment of a proper mix-' ture and-thus mayaggravate any trouble by rendering the carbureters less efiicient.

The object of the present invention is to provide a spray nozzle whichis insertible in a bushing inthe main tube which com municates withth'egasolene chamber. This insertible spray nozzle has a bore of two folddiameter, the smaller diameter constituting the outlet orifice. Thesaidnozzle is detachable, therefore, other nozzles may be substitutedinwhich the two-fold diameter of bore may vary according to the character.of the oil. The piston displacement is ascertained when the carbureteris T installed and the proper amount of fuel to supply such displacementis thenceforward admitted to the carbureters through an orifice thatbecomes permanent. The same piston displacement and velocity of airtravel always requires the same jet opening and this opening becomesfixed and unchangeable.- The carb ureter is, therefore, relieved of theusual adjustable features which causemuch annoyancejand ineficiency incarbureters employing the needle valve, or a conical spray pointpartially closing the end of a round orifice. While a needle valve hasheretofore been generally used to CABBUEETEB.

. Specification oi Letters Patent. I

, COHEPANY, 0F IDAYTOLN, OHIO, A. CORPORATION OF OHIO.

no less objectionable than theneedle valve for the reason that thespreader point has marked tendency to choke up the inlet, and. the smallopenings in the tube have a similar tendency to clog up. The presentinvention eliminates all of these difliculties by providing a freeunobstructed and non adustable inlet for the oil to the spray'devioe.

Preceding a detail descriptionof my invention, reference is made to theaccompanydrawmg of which Tigure 1 1s a vertical sectional elevation ofthe carburetor; Fig. 2 is an enlarged detall sectional view of the spraynozzle devices; Figs; 3 and4 are detail sectional vlews of nozzleshaving dilferent sizes of outlet orifices; Fig. 5- is a bottomplan-view, i

of one or the other of said nozzles with in- .dications thereon denotingthe size of the p {Patented May 30, 1916. Application filed October '23,ma. serial No. scares.

application, Serial No. 817,441, filed Feb. 9, i

1914. r Rroceeding to a description of my present improvementsapermanent tube 2 extends from the bottom'of the shell 1 in which iscontained the gasolene orcombustible, the

inlet of which is controlled through a float 3 and-valve 4. The tube 2is partitioned from the float chamber by an annular wall 5 butcommunicates with said, chamber by a lower passage 6. The spray nozzleconsists of a stem 7 having, a central orifice 8,

a spray nozzle collar 14 and a spray head.-

13, which are spaced to provide a lateral annular spray. orifice 13. Thediameter ofthe spray headl13 is greater than that of the collar 14 inorder to retard the too.

sudden rise of the spray. The stem 7 is screw-threaded into thepermanent tube 2. A nozzle 9 is inserted in the stem 7 and has ascrew-threaded engagement therewith.

T is nozzle 9 is inserted in the stem 1 of thespray' nozzle througlrthlower end of said stem and the upper end thereof has a jet opening 10leading from a lower openand, likewise, the l'uel is fed tothe nozzle 9.it will be observed that the nozzle 9 is removable from the stem 7 andthat, therefore, it is possible to provide said stem 7 with inletnozzles i) having openings 10 of different diameters. It will, however,be understood that the spray nozzle stem 7 and the nozzle 9 may be oneintegral part. It

will also be understood that the bore of the nozzle! may be uniforminstead ot dill'erential dian'ieters, I prefer, however, to have thelower part oi said bore of larger diameter in order to augment andmaintain a free passage through said nozzle. The main object and aim isto maintain a free and unobstructed passage'for the fuel, so that whenonce established it remains free from tampering with.

By means of the present invention, a spray nozzle of the proper openingis pro vided, this being determined upon when the earhureter isinstalled. When the proper inlet orifice, is thus ascertained, a nozzle9 having such orifice becomes permanent. In Fig. 5, numerals are shownon the lower end-.or head 12 of the nozzle 9 which indicates the sizeof-the opening 10, it being understood. that said numerals are differenton nozzles having different diameters of openings. The spray orifice '13is surrounded by a sleeve 15 where the mixing of the fuel with air takesplace. The sleeve 15 is enlarged at its lower end and by shifting saidsleeve the supply of air is regulated by increasing or decreasing thesurrounding air space. Surrounding the sleeve 15 is an outer sleeve 16between which and said sleeve 15 a coil spring 17-is placed and holdsthe sleeves 15 and ll) in normal p'osition. The outer sleeve 16 is alsovertically movable within the annular wall 5 and is maintained in itsupper position, by a coil spring lH. it is lowered through means of a,

lever 19 \\'l)l(ll is suitably connected to an.

ail-"inlet valve 20. These features are fully described in my pendingapplication hereinbefore referred to and are therefore but briellvmentioned herein, the essential features of the present invention bein;the features more nearly related to the supply of fuel to a spray nozzlefree from valve controlment, coiipein-iting sprayer points, or amultiplicity-of small jet openings.

llaving described my invention, I claim. in a carhureter, thecombination with a shell providing; a grasolene chamber. a main tubularportion communicating with said gasolene chamber. a srrcw-threaded plugiiisertible in the upper end of said main: tubular portion. asrrew-threaded plug insertible in the lower end of the lirstnamed.

screw-threaded plug having a'bore of two-- JOHN W. RAYMOND.

Witnesses R. J. ll/ICCARTIY, MA'rrnnw Suzanna.

